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Implemented SystemClock (IReferenceClock by dshow).

This commit is contained in:
Raphael Junqueira 2004-05-05 23:51:59 +00:00 committed by Alexandre Julliard
parent eed647d0ad
commit 0359eaa80c
5 changed files with 387 additions and 2 deletions
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5
dlls/quartz/Makefile.in
View File

@ -4,7 +4,7 @@ SRCDIR = @srcdir@
VPATH = @srcdir@
MODULE = quartz.dll
IMPORTS = ole32 oleaut32 advapi32 kernel32 user32
EXTRALIBS = -luuid $(LIBUNICODE)
EXTRALIBS = -ldxguid -luuid $(LIBUNICODE)
C_SRCS = \
avisplit.c \
@ -20,7 +20,8 @@ C_SRCS = \
main.c \
memallocator.c \
pin.c \
regsvr.c
regsvr.c \
systemclock.c
RC_SRCS = version.rc

2
dlls/quartz/main.c
View File

@ -66,6 +66,8 @@ static const struct object_creation_info object_creation[] =
{ &CLSID_AsyncReader, AsyncReader_create },
{ &CLSID_MemoryAllocator, StdMemAllocator_create },
{ &CLSID_AviSplitter, AVISplitter_create },
{ &CLSID_SystemClock, &QUARTZ_CreateSystemClock }
};
static HRESULT WINAPI

1
dlls/quartz/quartz_private.h
View File

@ -42,6 +42,7 @@ HRESULT FilterMapper2_create(IUnknown *pUnkOuter, LPVOID *ppObj);
HRESULT AsyncReader_create(IUnknown * pUnkOuter, LPVOID * ppv);
HRESULT StdMemAllocator_create(IUnknown * pUnkOuter, LPVOID * ppv);
HRESULT AVISplitter_create(IUnknown * pUnkOuter, LPVOID * ppv);
HRESULT QUARTZ_CreateSystemClock(IUnknown * pUnkOuter, LPVOID * ppv);
HRESULT EnumMonikerImpl_Create(IMoniker ** ppMoniker, ULONG nMonikerCount, IEnumMoniker ** ppEnum);

6
dlls/quartz/regsvr.c
View File

@ -521,6 +521,12 @@ static struct regsvr_coclass const coclass_list[] = {
"quartz.dll",
"Both"
},
{ &CLSID_SystemClock,
"System Clock",
NULL,
"quartz.dll",
"Both"
},
{ NULL } /* list terminator */
};

375
dlls/quartz/systemclock.c Normal file
View File

@ -0,0 +1,375 @@
/*
* Implementation of IReferenceClock
*
* Copyright 2004 Raphael Junqueira
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define COM_NO_WINDOWS_H
#include "quartz_private.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "uuids.h"
#include <assert.h>
WINE_DEFAULT_DEBUG_CHANNEL(quartz);
typedef struct SystemClockAdviseEntry SystemClockAdviseEntry;
struct SystemClockAdviseEntry {
SystemClockAdviseEntry* next;
SystemClockAdviseEntry* prev;
HANDLE hEvent;
REFERENCE_TIME rtBaseTime;
REFERENCE_TIME rtIntervalTime;
};
typedef struct SystemClockImpl {
ICOM_VFIELD(IReferenceClock);
ULONG ref;
/** IReferenceClock */
HANDLE adviseThread;
DWORD adviseThreadId;
BOOL adviseThreadActive;
REFERENCE_TIME lastRefTime;
DWORD lastTimeTickCount;
CRITICAL_SECTION safe;
SystemClockAdviseEntry* pSingleShotAdvise;
SystemClockAdviseEntry* pPeriodicAdvise;
} SystemClockImpl;
static void QUARTZ_RemoveAviseEntryFromQueue(SystemClockImpl* This, SystemClockAdviseEntry* pEntry) {
if (pEntry->prev) pEntry->prev->next = pEntry->next;
if (pEntry->next) pEntry->next->prev = pEntry->prev;
if (This->pSingleShotAdvise == pEntry) This->pSingleShotAdvise = pEntry->next;
if (This->pPeriodicAdvise == pEntry) This->pPeriodicAdvise = pEntry->next;
}
static void QUARTZ_InsertAviseEntryFromQueue(SystemClockImpl* This, SystemClockAdviseEntry* pEntry, SystemClockAdviseEntry** pQueue) {
SystemClockAdviseEntry* prev_it = NULL;
SystemClockAdviseEntry* it = NULL;
REFERENCE_TIME bornTime = pEntry->rtBaseTime + pEntry->rtIntervalTime;
for (it = *pQueue; NULL != it && (it->rtBaseTime + it->rtIntervalTime) < bornTime; it = it->next) {
prev_it = it;
}
if (NULL == prev_it) {
pEntry->prev = NULL;
if (NULL != (*pQueue)) pEntry->next = (*pQueue)->next;
/*assert( NULL == pEntry->next->prev );*/
if (NULL != pEntry->next) pEntry->next->prev = pEntry;
(*pQueue) = pEntry;
} else {
pEntry->prev = prev_it;
pEntry->next = prev_it->next;
prev_it->next = pEntry;
if (NULL != pEntry->next) pEntry->next->prev = pEntry;
}
}
#define MAX_REFTIME (REFERENCE_TIME)(0x7FFFFFFFFFFFFFFF)
#define ADVISE_EXIT (WM_APP + 0)
#define ADVISE_REMOVE (WM_APP + 2)
#define ADVISE_ADD_SINGLESHOT (WM_APP + 4)
#define ADVISE_ADD_PERIODIC (WM_APP + 8)
static DWORD WINAPI SystemClockAdviseThread(LPVOID lpParam) {
SystemClockImpl* This = (SystemClockImpl*) lpParam;
DWORD timeOut = INFINITE;
DWORD tmpTimeOut;
MSG msg;
HRESULT hr;
REFERENCE_TIME curTime;
SystemClockAdviseEntry* it = NULL;
TRACE("(%p): Main Loop\n", This);
while (TRUE) {
if (timeOut > 0) MsgWaitForMultipleObjects(0, NULL, FALSE, timeOut, QS_POSTMESSAGE|QS_SENDMESSAGE|QS_TIMER);
EnterCriticalSection(&This->safe);
/*timeOut = IReferenceClock_OnTimerUpdated(This); */
hr = IReferenceClock_GetTime((IReferenceClock*) This, &curTime);
if (FAILED(hr)) {
timeOut = INFINITE;
goto outrefresh;
}
/** First SingleShots Advice: sorted list */
for (it = This->pSingleShotAdvise; NULL != it && it->rtBaseTime <= curTime; it = it->next) {
/** send event ... */
SetEvent((HANDLE) it->hEvent);
/** ... and Release it */
QUARTZ_RemoveAviseEntryFromQueue(This, it);
HeapFree(GetProcessHeap(), 0, it);
}
if (NULL != it) timeOut = (DWORD) (curTime - (it->rtBaseTime + it->rtIntervalTime));
/** Now Periodics Advice: semi sorted list (sort cannot be used) */
for (it = This->pPeriodicAdvise; NULL != it; it = it->next) {
if (it->rtBaseTime <= curTime) {
DWORD nPeriods = (DWORD) ((curTime - it->rtBaseTime) / it->rtIntervalTime);
/** Release the semaphore ... */
ReleaseSemaphore((HANDLE) it->hEvent, nPeriods, NULL);
/** ... and refresh time */
it->rtBaseTime += it->rtIntervalTime;
/*assert( it->rtBaseTime + it->rtIntervalTime < curTime );*/
}
tmpTimeOut = (DWORD) (curTime - (it->rtBaseTime + it->rtIntervalTime));
if (timeOut > tmpTimeOut) timeOut = tmpTimeOut;
}
outrefresh:
LeaveCriticalSection(&This->safe);
while (TRUE == PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE)) {
/** if hwnd we suppose that is a windows event ... */
if (NULL != msg.hwnd) {
TranslateMessage(&msg);
DispatchMessageA(&msg);
} else {
switch (msg.message) {
case WM_QUIT:
case ADVISE_EXIT:
goto outofthread;
break;
case ADVISE_ADD_SINGLESHOT:
case ADVISE_ADD_PERIODIC:
/** set timeout to 0 to do a rescan now */
timeOut = 0;
break;
case ADVISE_REMOVE:
/** hmmmm what we can do here ... */
timeOut = INFINITE;
break;
default:
ERR("Unhandled message %u. Critical Path\n", msg.message);
break;
}
}
}
}
outofthread:
TRACE("(%p): Exiting\n", This);
return 0;
}
/*static DWORD WINAPI SystemClockAdviseThread(LPVOID lpParam) { */
static BOOL SystemClockPostMessageToAdviseThread(SystemClockImpl* This, UINT iMsg) {
if (FALSE == This->adviseThreadActive) {
This->adviseThread = CreateThread(NULL, 0, SystemClockAdviseThread, This, 0, &This->adviseThreadId);
if (NULL == This->adviseThread) return FALSE;
SetThreadPriority(This->adviseThread, THREAD_PRIORITY_TIME_CRITICAL);
This->adviseThreadActive = TRUE;
}
return PostThreadMessageA(This->adviseThreadId, iMsg, 0, 0);
}
ICOM_VTABLE(IReferenceClock) SystemClock_Vtbl;
static ULONG WINAPI SystemClockImpl_AddRef(IReferenceClock* iface) {
ICOM_THIS(SystemClockImpl,iface);
TRACE("(%p): AddRef from %ld\n", This, This->ref);
return ++(This->ref);
}
static HRESULT WINAPI SystemClockImpl_QueryInterface(IReferenceClock* iface, REFIID riid, void** ppobj) {
ICOM_THIS(SystemClockImpl,iface);
TRACE("(%p, %s,%p)\n", This, debugstr_guid(riid), ppobj);
if (IsEqualIID (riid, &IID_IUnknown) ||
IsEqualIID (riid, &IID_IReferenceClock)) {
SystemClockImpl_AddRef(iface);
*ppobj = This;
return S_OK;
}
WARN("(%p, %s,%p): not found\n", This, debugstr_guid(riid), ppobj);
return E_NOINTERFACE;
}
static ULONG WINAPI SystemClockImpl_Release(IReferenceClock* iface) {
ICOM_THIS(SystemClockImpl,iface);
ULONG ref = --This->ref;
TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
if (ref == 0) {
if (SystemClockPostMessageToAdviseThread(This, ADVISE_EXIT)) {
WaitForSingleObject(This->adviseThread, INFINITE);
CloseHandle(This->adviseThread);
}
DeleteCriticalSection(&This->safe);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI SystemClockImpl_GetTime(IReferenceClock* iface, REFERENCE_TIME* pTime) {
ICOM_THIS(SystemClockImpl,iface);
DWORD curTimeTickCount;
HRESULT hr = S_OK;
TRACE("(%p, %p)\n", This, pTime);
if (NULL == pTime) {
return E_POINTER;
}
curTimeTickCount = GetTickCount();
EnterCriticalSection(&This->safe);
/** TODO: safe this not using * 10000 */
This->lastRefTime += (REFERENCE_TIME) (DWORD) (curTimeTickCount - This->lastTimeTickCount) * (REFERENCE_TIME) 10000;
This->lastTimeTickCount = curTimeTickCount;
LeaveCriticalSection(&This->safe);
*pTime = This->lastRefTime;
if (This->lastTimeTickCount == curTimeTickCount) hr = S_FALSE;
This->lastTimeTickCount = curTimeTickCount;
return hr;
}
static HRESULT WINAPI SystemClockImpl_AdviseTime(IReferenceClock* iface, REFERENCE_TIME rtBaseTime, REFERENCE_TIME rtStreamTime, HEVENT hEvent, DWORD_PTR* pdwAdviseCookie) {
ICOM_THIS(SystemClockImpl,iface);
SystemClockAdviseEntry* pEntry = NULL;
TRACE("(%p, %lld, %lld, %ld, %p)\n", This, rtBaseTime, rtStreamTime, hEvent, pdwAdviseCookie);
if ((HEVENT) 0 == hEvent) {
return E_INVALIDARG;
}
if (0 >= rtBaseTime + rtStreamTime) {
return E_INVALIDARG;
}
if (NULL == pdwAdviseCookie) {
return E_POINTER;
}
pEntry = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SystemClockAdviseEntry));
if (NULL == pEntry) {
return E_OUTOFMEMORY;
}
pEntry->hEvent = (HANDLE) hEvent;
pEntry->rtBaseTime = rtBaseTime + rtStreamTime;
pEntry->rtIntervalTime = 0;
EnterCriticalSection(&This->safe);
QUARTZ_InsertAviseEntryFromQueue(This, pEntry, &This->pSingleShotAdvise);
LeaveCriticalSection(&This->safe);
SystemClockPostMessageToAdviseThread(This, ADVISE_ADD_SINGLESHOT);
*pdwAdviseCookie = (DWORD_PTR) (pEntry);
return S_OK;
}
static HRESULT WINAPI SystemClockImpl_AdvisePeriodic(IReferenceClock* iface, REFERENCE_TIME rtStartTime, REFERENCE_TIME rtPeriodTime, HSEMAPHORE hSemaphore, DWORD_PTR* pdwAdviseCookie) {
ICOM_THIS(SystemClockImpl,iface);
SystemClockAdviseEntry* pEntry = NULL;
TRACE("(%p, %lld, %lld, %ld, %p)\n", This, rtStartTime, rtPeriodTime, hSemaphore, pdwAdviseCookie);
if ((HSEMAPHORE) 0 == hSemaphore) {
return E_INVALIDARG;
}
if (0 >= rtStartTime || 0 >= rtPeriodTime) {
return E_INVALIDARG;
}
if (NULL == pdwAdviseCookie) {
return E_POINTER;
}
pEntry = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SystemClockAdviseEntry));
if (NULL == pEntry) {
return E_OUTOFMEMORY;
}
pEntry->hEvent = (HANDLE) hSemaphore;
pEntry->rtBaseTime = rtStartTime;
pEntry->rtIntervalTime = rtPeriodTime;
EnterCriticalSection(&This->safe);
QUARTZ_InsertAviseEntryFromQueue(This, pEntry, &This->pPeriodicAdvise);
LeaveCriticalSection(&This->safe);
SystemClockPostMessageToAdviseThread(This, ADVISE_ADD_PERIODIC);
*pdwAdviseCookie = (DWORD_PTR) (pEntry);
return S_OK;
}
static HRESULT WINAPI SystemClockImpl_Unadvise(IReferenceClock* iface, DWORD_PTR dwAdviseCookie) {
ICOM_THIS(SystemClockImpl,iface);
SystemClockAdviseEntry* pEntry = NULL;
SystemClockAdviseEntry* it = NULL;
HRESULT ret = S_OK;
TRACE("(%p, %lu)\n", This, dwAdviseCookie);
pEntry = (SystemClockAdviseEntry*) dwAdviseCookie;
EnterCriticalSection(&This->safe);
for (it = This->pPeriodicAdvise; NULL != it && it != pEntry; it = it->next) ;
if (it != pEntry) {
for (it = This->pSingleShotAdvise; NULL != it && it != pEntry; it = it->next) ;
if (it != pEntry) {
ret = S_FALSE;
goto out;
}
}
QUARTZ_RemoveAviseEntryFromQueue(This, pEntry);
HeapFree(GetProcessHeap(), 0, pEntry);
SystemClockPostMessageToAdviseThread(This, ADVISE_REMOVE);
out:
LeaveCriticalSection(&This->safe);
return ret;
}
ICOM_VTABLE(IReferenceClock) SystemClock_Vtbl =
{
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
SystemClockImpl_QueryInterface,
SystemClockImpl_AddRef,
SystemClockImpl_Release,
SystemClockImpl_GetTime,
SystemClockImpl_AdviseTime,
SystemClockImpl_AdvisePeriodic,
SystemClockImpl_Unadvise
};
HRESULT QUARTZ_CreateSystemClock(IUnknown * pUnkOuter, LPVOID * ppv) {
SystemClockImpl* obj = NULL;
TRACE("(%p,%p)\n", ppv, pUnkOuter);
obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IReferenceClock));
if (NULL == obj) {
*ppv = NULL;
return E_OUTOFMEMORY;
}
obj->lpVtbl = &SystemClock_Vtbl;
obj->ref = 0; /* will be inited by QueryInterface */
obj->lastTimeTickCount = GetTickCount();
InitializeCriticalSection(&obj->safe);
return SystemClockImpl_QueryInterface((IReferenceClock*) obj, &IID_IReferenceClock, ppv);
}