Santino Mazza : evr: Don't lock presenter allocator when calling NotifyRelease.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: fa3ebd5044d26e6364e0ea0068cb3c4716b50b4e
URL:    https://gitlab.winehq.org/wine/wine/-/commit/fa3ebd5044d26e6364e0ea0068cb3c4...

Author: Santino Mazza 
Date:   Wed Aug  9 19:43:42 2023 -0300

evr: Don't lock presenter allocator when calling NotifyRelease.

The changes in the video sample allocator are not part of the public
api specification, it's only made for internal use in the evr presenter
implementation.

---

dlls/evr/evr_private.h |  2 ++
 dlls/evr/presenter.c   |  2 +-
 dlls/evr/sample.c      | 30 ++++++++++++++++++++++++++----
 3 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/dlls/evr/evr_private.h b/dlls/evr/evr_private.h
index ef38b0f70cf..93047b50c94 100644
--- a/dlls/evr/evr_private.h
+++ b/dlls/evr/evr_private.h
@@ -55,4 +55,6 @@ HRESULT evr_filter_create(IUnknown *outer_unk, void **ppv) DECLSPEC_HIDDEN;
 HRESULT evr_mixer_create(IUnknown *outer_unk, void **ppv) DECLSPEC_HIDDEN;
 HRESULT evr_presenter_create(IUnknown *outer_unk, void **ppv) DECLSPEC_HIDDEN;

+HRESULT create_video_sample_allocator(BOOL lock_notify_release, REFIID riid, void **obj);
+
 #endif /* __EVR_PRIVATE_INCLUDED__ */
diff --git a/dlls/evr/presenter.c b/dlls/evr/presenter.c
index 645a2461e4c..3ae9b24ad4a 100644
--- a/dlls/evr/presenter.c
+++ b/dlls/evr/presenter.c
@@ -2149,7 +2149,7 @@ static HRESULT video_presenter_init_d3d(struct video_presenter *presenter)
     if (FAILED(hr))
         WARN("Failed to set new device for the manager, hr %#lx.\n", hr);

-    if (SUCCEEDED(hr = MFCreateVideoSampleAllocator(&IID_IMFVideoSampleAllocator, (void **)&presenter->allocator)))
+    if (SUCCEEDED(hr = create_video_sample_allocator(FALSE, &IID_IMFVideoSampleAllocator, (void **)&presenter->allocator)))
     {
         hr = IMFVideoSampleAllocator_SetDirectXManager(presenter->allocator, (IUnknown *)presenter->device_manager);
     }
diff --git a/dlls/evr/sample.c b/dlls/evr/sample.c
index 6a1bbf564f5..aa3f120b115 100644
--- a/dlls/evr/sample.c
+++ b/dlls/evr/sample.c
@@ -395,6 +395,7 @@ struct sample_allocator
     unsigned int free_sample_count;
     struct list free_samples;
     struct list used_samples;
+    BOOL lock_notify_release;
     CRITICAL_SECTION cs;
 };

@@ -809,6 +810,7 @@ static HRESULT WINAPI sample_allocator_tracking_callback_Invoke(IMFAsyncCallback
     struct queued_sample *iter;
     IUnknown *object = NULL;
     IMFSample *sample = NULL;
+    IMFVideoSampleAllocatorNotify *callback = NULL;
     HRESULT hr;

if (FAILED(IMFAsyncResult_GetObject(result, &object)))
@@ -836,10 +838,24 @@ static HRESULT WINAPI sample_allocator_tracking_callback_Invoke(IMFAsyncCallback
     IMFSample_Release(sample);

if (allocator->callback)
-        IMFVideoSampleAllocatorNotify_NotifyRelease(allocator->callback);
+    {
+        if (allocator->lock_notify_release)
+            IMFVideoSampleAllocatorNotify_NotifyRelease(allocator->callback);
+        else
+        {
+            callback = allocator->callback;
+            IMFVideoSampleAllocatorNotify_AddRef(callback);
+        }
+    }

LeaveCriticalSection(&allocator->cs);

+    if (callback)
+    {
+        IMFVideoSampleAllocatorNotify_NotifyRelease(callback);
+        IMFVideoSampleAllocatorNotify_Release(callback);
+    }
+
     return S_OK;
 }

@@ -852,13 +868,11 @@ static const IMFAsyncCallbackVtbl sample_allocator_tracking_callback_vtbl =
     sample_allocator_tracking_callback_Invoke,
 };

-HRESULT WINAPI MFCreateVideoSampleAllocator(REFIID riid, void **obj)
+HRESULT create_video_sample_allocator(BOOL lock_notify_release, REFIID riid, void **obj)
 {
     struct sample_allocator *object;
     HRESULT hr;

-    TRACE("%s, %p.\n", debugstr_guid(riid), obj);
-
     if (!(object = calloc(1, sizeof(*object))))
         return E_OUTOFMEMORY;

@@ -868,6 +882,7 @@ HRESULT WINAPI MFCreateVideoSampleAllocator(REFIID riid, void **obj)
     object->refcount = 1;
     list_init(&object->used_samples);
     list_init(&object->free_samples);
+    object->lock_notify_release = lock_notify_release;
     InitializeCriticalSection(&object->cs);

hr = IMFVideoSampleAllocator_QueryInterface(&object->IMFVideoSampleAllocator_iface, riid, obj);
@@ -876,6 +891,13 @@ HRESULT WINAPI MFCreateVideoSampleAllocator(REFIID riid, void **obj)
     return hr;
 }

+HRESULT WINAPI MFCreateVideoSampleAllocator(REFIID riid, void **obj)
+{
+    TRACE("%s, %p.\n", debugstr_guid(riid), obj);
+
+    return create_video_sample_allocator(TRUE, riid, obj);
+}
+
 static HRESULT WINAPI video_sample_QueryInterface(IMFSample *iface, REFIID riid, void **out)
 {
     struct video_sample *sample = impl_from_IMFSample(iface);