/***************************************************************************
* MCIQTZ_notifyThread [internal]
*/
static DWORD CALLBACK MCIQTZ_notifyThread(LPVOID parm)
{
WINE_MCIQTZ* wma = (WINE_MCIQTZ *)parm;
HRESULT hr;
HANDLE handle[2];
DWORD n = 0, ret = 0;
handle[n++] = wma->stop_event;
IMediaEvent_GetEventHandle(wma->mevent, (OAEVENT *)&handle[n++]);
for (;;) {
DWORD r;
HANDLE old;
r = WaitForMultipleObjects(n, handle, FALSE, INFINITE);
if (r == WAIT_OBJECT_0) {
TRACE("got stop event\n");
old = InterlockedExchangePointer(&wma->callback, NULL);
if (old)
mciDriverNotify(old, wma->notify_devid, MCI_NOTIFY_ABORTED);
break;
}
else if (r == WAIT_OBJECT_0+1) {
LONG event_code;
LONG_PTR p1, p2;
do {
hr = IMediaEvent_GetEvent(wma->mevent, &event_code, &p1, &p2, 0);
if (SUCCEEDED(hr)) {
TRACE("got event_code = 0x%02x\n", event_code);
IMediaEvent_FreeEventParams(wma->mevent, event_code, p1, p2);
}
} while (hr == S_OK && event_code != EC_COMPLETE);
if (hr == S_OK && event_code == EC_COMPLETE) {
old = InterlockedExchangePointer(&wma->callback, NULL);
if (old)
mciDriverNotify(old, wma->notify_devid, MCI_NOTIFY_SUCCESSFUL);
break;
}
}
else {
TRACE("Unknown error (%d)\n", (int)r);
break;
}
}
hr = IMediaControl_Stop(wma->pmctrl);
if (FAILED(hr)) {
TRACE("Cannot stop filtergraph (hr = %x)\n", hr);
ret = MCIERR_INTERNAL;
}
return ret;
}
/**
* Checks media events from DirectShow and returns -1 on error or EOF. Also
* purges all events that might be in the event queue to stop the trigger
* of event notification.
*/
static int dshow_check_event_queue(IMediaEvent *media_event)
{
LONG_PTR p1, p2;
long code;
int ret = 0;
while (IMediaEvent_GetEvent(media_event, &code, &p1, &p2, 0) != E_ABORT) {
if (code == EC_COMPLETE || code == EC_DEVICE_LOST || code == EC_ERRORABORT)
ret = -1;
IMediaEvent_FreeEventParams(media_event, code, p1, p2);
}
return ret;
}
