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quartz: Use the graph critical section to synchronize media event methods. 

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2021-02-18 16:58:09 -06:00 committed by Alexandre Julliard
parent 5b0b78b6f0
commit dc836b85c1
1 changed files with 14 additions and 21 deletions
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35
dlls/quartz/filtergraph.c
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@ -62,7 +62,6 @@ typedef struct {
int ring_buffer_size;
int msg_tosave;
int msg_toget;
CRITICAL_SECTION msg_crst;
HANDLE msg_event; /* Signaled for no empty queue */
} EventsQueue;
@ -75,8 +74,6 @@ static int EventsQueue_Init(EventsQueue* omr)
omr->messages = CoTaskMemAlloc(omr->ring_buffer_size * sizeof(Event));
ZeroMemory(omr->messages, omr->ring_buffer_size * sizeof(Event));
InitializeCriticalSection(&omr->msg_crst);
omr->msg_crst.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": EventsQueue.msg_crst");
return TRUE;
}
@ -84,14 +81,11 @@ static int EventsQueue_Destroy(EventsQueue* omr)
{
CloseHandle(omr->msg_event);
CoTaskMemFree(omr->messages);
omr->msg_crst.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&omr->msg_crst);
return TRUE;
}
static BOOL EventsQueue_PutEvent(EventsQueue* omr, const Event* evt)
{
EnterCriticalSection(&omr->msg_crst);
if (omr->msg_toget == ((omr->msg_tosave + 1) % omr->ring_buffer_size))
{
int old_ring_buffer_size = omr->ring_buffer_size;
@ -114,22 +108,13 @@ static BOOL EventsQueue_PutEvent(EventsQueue* omr, const Event* evt)
omr->messages[omr->msg_tosave] = *evt;
SetEvent(omr->msg_event);
omr->msg_tosave = (omr->msg_tosave + 1) % omr->ring_buffer_size;
LeaveCriticalSection(&omr->msg_crst);
return TRUE;
}
static BOOL EventsQueue_GetEvent(EventsQueue* omr, Event* evt, LONG msTimeOut)
static BOOL EventsQueue_GetEvent(EventsQueue* omr, Event* evt)
{
if (WaitForSingleObject(omr->msg_event, msTimeOut) != WAIT_OBJECT_0)
return FALSE;
EnterCriticalSection(&omr->msg_crst);
if (omr->msg_toget == omr->msg_tosave) /* buffer empty ? */
{
LeaveCriticalSection(&omr->msg_crst);
return FALSE;
}
*evt = omr->messages[omr->msg_toget];
omr->msg_toget = (omr->msg_toget + 1) % omr->ring_buffer_size;
@ -138,7 +123,6 @@ static BOOL EventsQueue_GetEvent(EventsQueue* omr, Event* evt, LONG msTimeOut)
if (omr->msg_toget == omr->msg_tosave) /* buffer empty ? */
ResetEvent(omr->msg_event);
LeaveCriticalSection(&omr->msg_crst);
return TRUE;
}
@ -4786,14 +4770,24 @@ static HRESULT WINAPI MediaEvent_GetEvent(IMediaEventEx *iface, LONG *lEventCode
TRACE("(%p/%p)->(%p, %p, %p, %d)\n", This, iface, lEventCode, lParam1, lParam2, msTimeout);
if (EventsQueue_GetEvent(&This->evqueue, &evt, msTimeout))
if (WaitForSingleObject(This->evqueue.msg_event, msTimeout))
{
*lEventCode = 0;
return E_ABORT;
}
EnterCriticalSection(&This->cs);
if (EventsQueue_GetEvent(&This->evqueue, &evt))
{
*lEventCode = evt.lEventCode;
*lParam1 = evt.lParam1;
*lParam2 = evt.lParam2;
LeaveCriticalSection(&This->cs);
return S_OK;
}
LeaveCriticalSection(&This->cs);
*lEventCode = 0;
return E_ABORT;
}
@ -5280,8 +5274,7 @@ static HRESULT WINAPI MediaEventSink_Notify(IMediaEventSink *iface, LONG EventCo
TRACE("(%p/%p)->(%d, %ld, %ld)\n", This, iface, EventCode, EventParam1, EventParam2);
/* We need thread safety here, let's use the events queue's one */
EnterCriticalSection(&This->evqueue.msg_crst);
EnterCriticalSection(&This->cs);
if ((EventCode == EC_COMPLETE) && This->HandleEcComplete)
{
@ -5324,7 +5317,7 @@ static HRESULT WINAPI MediaEventSink_Notify(IMediaEventSink *iface, LONG EventCo
PostMessageW(This->notif.hWnd, This->notif.msg, 0, This->notif.instance);
}
LeaveCriticalSection(&This->evqueue.msg_crst);
LeaveCriticalSection(&This->cs);
return S_OK;
}