mfplat: Add a stub implementation of DXGI surface buffer.

dlls/mfplat/main.c

@@ -32,7 +32,7 @@
 #include "rtworkq.h"
 #include "ole2.h"
 #include "propsys.h"
-#include "dxgi.h"
+#include "d3d11.h"
 #include "uuids.h"
 
 #include "wine/debug.h"

dlls/mfplat/mfplat.spec

@@ -46,6 +46,7 @@
 @ stub MFCreateAudioMediaType
 @ stdcall MFCreateCollection(ptr)
 @ stdcall MFCreateDXGIDeviceManager(ptr ptr)
+@ stdcall MFCreateDXGISurfaceBuffer(ptr ptr long long ptr)
 @ stdcall MFCreateDXSurfaceBuffer(ptr ptr long ptr)
 @ stdcall MFCreateEventQueue(ptr)
 @ stdcall MFCreateFile(long long long wstr ptr)

dlls/mfplat/tests/mfplat.c

@@ -6206,7 +6206,7 @@ static void test_dxgi_surface_buffer(void)
 
     if (!pMFCreateDXGISurfaceBuffer)
     {
-        skip("MFCreateDXGISurfaceBuffer() is not available.\n");
+        win_skip("MFCreateDXGISurfaceBuffer() is not available.\n");
         return;
     }
 
@@ -6248,9 +6248,15 @@ static void test_dxgi_surface_buffer(void)
     ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
     ok(index == 0, "Unexpected subresource index.\n");
 
+    hr = IMFDXGIBuffer_SetUnknown(dxgi_buffer, &IID_IMFDXGIBuffer, NULL);
+    ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+
     hr = IMFDXGIBuffer_SetUnknown(dxgi_buffer, &IID_IMFDXGIBuffer, (void *)device);
     ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
 
+    hr = IMFDXGIBuffer_SetUnknown(dxgi_buffer, &IID_IMFDXGIBuffer, (void *)device);
+    ok(hr == HRESULT_FROM_WIN32(ERROR_OBJECT_ALREADY_EXISTS), "Unexpected hr %#x.\n", hr);
+
     hr = ID3D11Texture2D_GetPrivateData(texture, &IID_IMFDXGIBuffer, &size, &data);
     ok(hr == DXGI_ERROR_NOT_FOUND, "Unexpected hr %#x.\n", hr);