Signed-off-by: Nikolay Sivov nsivov@codeweavers.com ---
Main motivation is to break dependency on mfplat queues, EVR should not depend on that, notifications work correctly on Windows without initializing MF platform. This also helps DirectShow case.
dlls/evr/sample.c | 280 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 275 insertions(+), 5 deletions(-)
diff --git a/dlls/evr/sample.c b/dlls/evr/sample.c index 39520cb6020..729f279fafe 100644 --- a/dlls/evr/sample.c +++ b/dlls/evr/sample.c @@ -103,6 +103,276 @@ static struct surface_buffer *impl_from_IMFGetService(IMFGetService *iface) return CONTAINING_RECORD(iface, struct surface_buffer, IMFGetService_iface); }
+struct tracked_async_result +{ + MFASYNCRESULT result; + LONG refcount; + IUnknown *object; + IUnknown *state; +}; + +static struct tracked_async_result *impl_from_IMFAsyncResult(IMFAsyncResult *iface) +{ + return CONTAINING_RECORD(iface, struct tracked_async_result, result.AsyncResult); +} + +static HRESULT WINAPI tracked_async_result_QueryInterface(IMFAsyncResult *iface, REFIID riid, void **obj) +{ + TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj); + + if (IsEqualIID(riid, &IID_IMFAsyncResult) || + IsEqualIID(riid, &IID_IUnknown)) + { + *obj = iface; + IMFAsyncResult_AddRef(iface); + return S_OK; + } + + *obj = NULL; + WARN("Unsupported interface %s.\n", debugstr_guid(riid)); + return E_NOINTERFACE; +} + +static ULONG WINAPI tracked_async_result_AddRef(IMFAsyncResult *iface) +{ + struct tracked_async_result *result = impl_from_IMFAsyncResult(iface); + ULONG refcount = InterlockedIncrement(&result->refcount); + + TRACE("%p, %u.\n", iface, refcount); + + return refcount; +} + +static ULONG WINAPI tracked_async_result_Release(IMFAsyncResult *iface) +{ + struct tracked_async_result *result = impl_from_IMFAsyncResult(iface); + ULONG refcount = InterlockedDecrement(&result->refcount); + + TRACE("%p, %u.\n", iface, refcount); + + if (!refcount) + { + if (result->result.pCallback) + IMFAsyncCallback_Release(result->result.pCallback); + if (result->object) + IUnknown_Release(result->object); + if (result->state) + IUnknown_Release(result->state); + heap_free(result); + } + + return refcount; +} + +static HRESULT WINAPI tracked_async_result_GetState(IMFAsyncResult *iface, IUnknown **state) +{ + struct tracked_async_result *result = impl_from_IMFAsyncResult(iface); + + TRACE("%p, %p.\n", iface, state); + + if (!result->state) + return E_POINTER; + + *state = result->state; + IUnknown_AddRef(*state); + + return S_OK; +} + +static HRESULT WINAPI tracked_async_result_GetStatus(IMFAsyncResult *iface) +{ + struct tracked_async_result *result = impl_from_IMFAsyncResult(iface); + + TRACE("%p.\n", iface); + + return result->result.hrStatusResult; +} + +static HRESULT WINAPI tracked_async_result_SetStatus(IMFAsyncResult *iface, HRESULT status) +{ + struct tracked_async_result *result = impl_from_IMFAsyncResult(iface); + + TRACE("%p, %#x.\n", iface, status); + + result->result.hrStatusResult = status; + + return S_OK; +} + +static HRESULT WINAPI tracked_async_result_GetObject(IMFAsyncResult *iface, IUnknown **object) +{ + struct tracked_async_result *result = impl_from_IMFAsyncResult(iface); + + TRACE("%p, %p.\n", iface, object); + + if (!result->object) + return E_POINTER; + + *object = result->object; + IUnknown_AddRef(*object); + + return S_OK; +} + +static IUnknown * WINAPI tracked_async_result_GetStateNoAddRef(IMFAsyncResult *iface) +{ + struct tracked_async_result *result = impl_from_IMFAsyncResult(iface); + + TRACE("%p.\n", iface); + + return result->state; +} + +static const IMFAsyncResultVtbl tracked_async_result_vtbl = +{ + tracked_async_result_QueryInterface, + tracked_async_result_AddRef, + tracked_async_result_Release, + tracked_async_result_GetState, + tracked_async_result_GetStatus, + tracked_async_result_SetStatus, + tracked_async_result_GetObject, + tracked_async_result_GetStateNoAddRef, +}; + +static HRESULT create_async_result(IUnknown *object, IMFAsyncCallback *callback, + IUnknown *state, IMFAsyncResult **out) +{ + struct tracked_async_result *result; + + result = heap_alloc_zero(sizeof(*result)); + if (!result) + return E_OUTOFMEMORY; + + result->result.AsyncResult.lpVtbl = &tracked_async_result_vtbl; + result->refcount = 1; + result->object = object; + if (result->object) + IUnknown_AddRef(result->object); + result->result.pCallback = callback; + if (result->result.pCallback) + IMFAsyncCallback_AddRef(result->result.pCallback); + result->state = state; + if (result->state) + IUnknown_AddRef(result->state); + + *out = &result->result.AsyncResult; + + return S_OK; +} + +struct tracking_thread +{ + HANDLE hthread; + DWORD tid; + LONG refcount; +}; +static struct tracking_thread tracking_thread; + +static CRITICAL_SECTION tracking_thread_cs = { NULL, -1, 0, 0, 0, 0 }; + +enum tracking_thread_message +{ + TRACKM_STOP = WM_USER, + TRACKM_INVOKE = WM_USER + 1, +}; + +static DWORD CALLBACK tracking_thread_proc(void *arg) +{ + HANDLE ready_event = arg; + BOOL stop_thread = FALSE; + IMFAsyncResult *result; + MFASYNCRESULT *data; + MSG msg; + + PeekMessageW(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE); + + SetEvent(ready_event); + + while (!stop_thread) + { + MsgWaitForMultipleObjects(0, NULL, FALSE, INFINITE, QS_POSTMESSAGE); + + while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE)) + { + switch (msg.message) + { + case TRACKM_INVOKE: + result = (IMFAsyncResult *)msg.lParam; + data = (MFASYNCRESULT *)result; + if (data->pCallback) + IMFAsyncCallback_Invoke(data->pCallback, result); + IMFAsyncResult_Release(result); + break; + + case TRACKM_STOP: + stop_thread = TRUE; + break; + + default: + ; + } + } + } + + TRACE("Tracking thread exiting.\n"); + + return 0; +} + +static void video_sample_create_tracking_thread(void) +{ + EnterCriticalSection(&tracking_thread_cs); + + if (++tracking_thread.refcount == 1) + { + HANDLE ready_event; + + ready_event = CreateEventW(NULL, FALSE, FALSE, NULL); + + if (!(tracking_thread.hthread = CreateThread(NULL, 0, tracking_thread_proc, + ready_event, 0, &tracking_thread.tid))) + { + WARN("Failed to create sample tracking thread.\n"); + CloseHandle(ready_event); + return; + } + + WaitForSingleObject(ready_event, INFINITE); + CloseHandle(ready_event); + + TRACE("Create tracking thread %#x.\n", tracking_thread.tid); + } + + LeaveCriticalSection(&tracking_thread_cs); +} + +static void video_sample_stop_tracking_thread(void) +{ + EnterCriticalSection(&tracking_thread_cs); + + if (!--tracking_thread.refcount) + { + PostThreadMessageW(tracking_thread.tid, TRACKM_STOP, 0, 0); + CloseHandle(tracking_thread.hthread); + memset(&tracking_thread, 0, sizeof(tracking_thread)); + } + + LeaveCriticalSection(&tracking_thread_cs); +} + +static void video_sample_tracking_thread_invoke(IMFAsyncResult *result) +{ + if (!tracking_thread.tid) + { + WARN("Sample tracking thread is not initialized.\n"); + return; + } + + IMFAsyncResult_AddRef(result); + PostThreadMessageW(tracking_thread.tid, TRACKM_INVOKE, 0, (LPARAM)result); +} + struct sample_allocator { IMFVideoSampleAllocator IMFVideoSampleAllocator_iface; @@ -628,14 +898,11 @@ static ULONG WINAPI video_sample_Release(IMFSample *iface) { struct video_sample *sample = impl_from_IMFSample(iface); ULONG refcount; - HRESULT hr;
IMFSample_LockStore(sample->sample); if (sample->tracked_result && sample->tracked_refcount == (sample->refcount - 1)) { - /* Call could fail if queue system is not initialized, it's not critical. */ - if (FAILED(hr = MFInvokeCallback(sample->tracked_result))) - WARN("Failed to invoke tracking callback, hr %#x.\n", hr); + video_sample_tracking_thread_invoke(sample->tracked_result); IMFAsyncResult_Release(sample->tracked_result); sample->tracked_result = NULL; sample->tracked_refcount = 0; @@ -648,6 +915,7 @@ static ULONG WINAPI video_sample_Release(IMFSample *iface)
if (!refcount) { + video_sample_stop_tracking_thread(); if (sample->sample) IMFSample_Release(sample->sample); heap_free(sample); @@ -1132,7 +1400,7 @@ static HRESULT WINAPI tracked_video_sample_SetAllocator(IMFTrackedSample *iface, hr = MF_E_NOTACCEPTING; else { - if (SUCCEEDED(hr = MFCreateAsyncResult((IUnknown *)iface, sample_allocator, state, &sample->tracked_result))) + if (SUCCEEDED(hr = create_async_result((IUnknown *)iface, sample_allocator, state, &sample->tracked_result))) { /* Account for additional refcount brought by 'state' object. This threshold is used on Release() to invoke tracker callback. */ @@ -1428,6 +1696,8 @@ HRESULT WINAPI MFCreateVideoSampleFromSurface(IUnknown *surface, IMFSample **sam if (buffer) IMFSample_AddBuffer(object->sample, buffer);
+ video_sample_create_tracking_thread(); + *sample = &object->IMFSample_iface;
return S_OK;