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qedit/tests: Add SampleGrabber COM aggregation test.
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35b9c42f53
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@ -19,6 +19,7 @@
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*/
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#define COBJMACROS
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#define CONST_VTABLE
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#include "initguid.h"
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#include "ole2.h"
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@ -28,6 +29,47 @@
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#include "qedit.h"
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#include "rc.h"
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/* Outer IUnknown for COM aggregation tests */
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struct unk_impl {
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IUnknown IUnknown_iface;
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LONG ref;
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IUnknown *inner_unk;
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};
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static inline struct unk_impl *impl_from_IUnknown(IUnknown *iface)
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{
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return CONTAINING_RECORD(iface, struct unk_impl, IUnknown_iface);
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}
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static HRESULT WINAPI unk_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
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{
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struct unk_impl *This = impl_from_IUnknown(iface);
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return IUnknown_QueryInterface(This->inner_unk, riid, ppv);
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}
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static ULONG WINAPI unk_AddRef(IUnknown *iface)
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{
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struct unk_impl *This = impl_from_IUnknown(iface);
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return InterlockedIncrement(&This->ref);
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}
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static ULONG WINAPI unk_Release(IUnknown *iface)
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{
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struct unk_impl *This = impl_from_IUnknown(iface);
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return InterlockedDecrement(&This->ref);
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}
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static const IUnknownVtbl unk_vtbl =
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{
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unk_QueryInterface,
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unk_AddRef,
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unk_Release
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};
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static WCHAR test_avi_filename[MAX_PATH];
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static WCHAR test_sound_avi_filename[MAX_PATH];
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@ -294,6 +336,31 @@ static void test_mediadet(void)
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DeleteFileW(test_sound_avi_filename);
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}
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static void test_samplegrabber(void)
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{
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struct unk_impl unk_obj = {{&unk_vtbl}, 19, NULL};
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ISampleGrabber *sg;
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ULONG refcount;
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HRESULT hr;
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/* COM aggregation */
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hr = CoCreateInstance(&CLSID_SampleGrabber, &unk_obj.IUnknown_iface, CLSCTX_INPROC_SERVER,
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&IID_IUnknown, (void**)&unk_obj.inner_unk);
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todo_wine ok(hr == S_OK, "CoCreateInstance failed: %08x\n", hr);
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if (hr != S_OK) return;
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hr = IUnknown_QueryInterface(unk_obj.inner_unk, &IID_ISampleGrabber, (void**)&sg);
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ok(hr == S_OK, "QueryInterface for IID_ISampleGrabber failed: %08x\n", hr);
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refcount = ISampleGrabber_AddRef(sg);
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ok(refcount == unk_obj.ref, "SampleGrabber just pretends to support COM aggregation\n");
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refcount = ISampleGrabber_Release(sg);
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ok(refcount == unk_obj.ref, "SampleGrabber just pretends to support COM aggregation\n");
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refcount = ISampleGrabber_Release(sg);
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ok(refcount == 19, "Refcount should be back at 19 but is %u\n", refcount);
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IUnknown_Release(unk_obj.inner_unk);
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}
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START_TEST(mediadet)
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{
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if (!init_tests())
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@ -304,5 +371,6 @@ START_TEST(mediadet)
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CoInitialize(NULL);
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test_mediadet();
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test_samplegrabber();
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CoUninitialize();
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}
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