[PATCH v2 3/5] quartz/filtergraph: Correctly implement IMediaSeeking::GetStopPosition().

[Zebediah Figura]

Signed-off-by: Zebediah Figura 
---
 dlls/quartz/filtergraph.c       | 43 ++++++++++++++++++++++++---------
 dlls/quartz/tests/filtergraph.c | 14 +++++------
 2 files changed, 38 insertions(+), 19 deletions(-)

diff --git a/dlls/quartz/filtergraph.c b/dlls/quartz/filtergraph.c
index 9d60d4332b..024f0bd1a5 100644
--- a/dlls/quartz/filtergraph.c
+++ b/dlls/quartz/filtergraph.c
@@ -2466,24 +2466,43 @@ static HRESULT WINAPI MediaSeeking_GetDuration(IMediaSeeking *iface, LONGLONG *p
     return hr;
 }

-static HRESULT WINAPI MediaSeeking_GetStopPosition(IMediaSeeking *iface, LONGLONG *pStop)
+static HRESULT WINAPI MediaSeeking_GetStopPosition(IMediaSeeking *iface, LONGLONG *stop)
 {
-    IFilterGraphImpl *This = impl_from_IMediaSeeking(iface);
-    HRESULT hr = S_OK;
+    IFilterGraphImpl *graph = impl_from_IMediaSeeking(iface);
+    HRESULT hr = E_NOTIMPL, filter_hr;
+    IMediaSeeking *seeking;
+    struct filter *filter;
+    LONGLONG filter_stop;

-    TRACE("(%p/%p)->(%p)\n", This, iface, pStop);
+    TRACE("graph %p, stop %p.\n", graph, stop);

-    if (!pStop)
+    if (!stop)
         return E_POINTER;

-    EnterCriticalSection(&This->cs);
-    if (This->stop_position < 0)
-        /* Stop position not set, use duration instead */
-        hr = IMediaSeeking_GetDuration(iface, pStop);
-    else
-        *pStop = This->stop_position;
-    LeaveCriticalSection(&This->cs);
+    *stop = 0;

+    EnterCriticalSection(&graph->cs);
+
+    LIST_FOR_EACH_ENTRY(filter, &graph->filters, struct filter, entry)
+    {
+        if (FAILED(IBaseFilter_QueryInterface(filter->filter, &IID_IMediaSeeking, (void **)&seeking)))
+            continue;
+
+        filter_hr = IMediaSeeking_GetStopPosition(seeking, &filter_stop);
+        IMediaSeeking_Release(seeking);
+        if (SUCCEEDED(filter_hr))
+        {
+            hr = S_OK;
+            *stop = max(*stop, filter_stop);
+        }
+        else if (filter_hr != E_NOTIMPL)
+        {
+            LeaveCriticalSection(&graph->cs);
+            return filter_hr;
+        }
+    }
+
+    LeaveCriticalSection(&graph->cs);
     return hr;
 }

diff --git a/dlls/quartz/tests/filtergraph.c b/dlls/quartz/tests/filtergraph.c
index 386e87086a..2ec9c52e47 100644
--- a/dlls/quartz/tests/filtergraph.c
+++ b/dlls/quartz/tests/filtergraph.c
@@ -3788,31 +3788,31 @@ static void test_graph_seeking(void)
     filter2.seek_stop = 0x65432;
     hr = IMediaSeeking_GetStopPosition(seeking, &time);
     ok(hr == S_OK, "Got hr %#x.\n", hr);
-    todo_wine ok(time == 0x65432, "Got time %s.\n", wine_dbgstr_longlong(time));
+    ok(time == 0x65432, "Got time %s.\n", wine_dbgstr_longlong(time));

filter2.seek_stop = 0x54321;
     filter1.seek_stop = 0x65432;
     hr = IMediaSeeking_GetStopPosition(seeking, &time);
     ok(hr == S_OK, "Got hr %#x.\n", hr);
-    todo_wine ok(time == 0x65432, "Got time %s.\n", wine_dbgstr_longlong(time));
+    ok(time == 0x65432, "Got time %s.\n", wine_dbgstr_longlong(time));

filter1.seek_hr = filter2.seek_hr = 0xbeef;
     hr = IMediaSeeking_GetStopPosition(seeking, &time);
     ok(hr == S_OK, "Got hr %#x.\n", hr);
-    todo_wine ok(time == 0x65432, "Got time %s.\n", wine_dbgstr_longlong(time));
+    ok(time == 0x65432, "Got time %s.\n", wine_dbgstr_longlong(time));

filter1.seek_hr = E_NOTIMPL;
     hr = IMediaSeeking_GetStopPosition(seeking, &time);
     ok(hr == S_OK, "Got hr %#x.\n", hr);
-    todo_wine ok(time == 0x54321, "Got time %s.\n", wine_dbgstr_longlong(time));
+    ok(time == 0x54321, "Got time %s.\n", wine_dbgstr_longlong(time));

filter1.seek_hr = 0xdeadbeef;
     hr = IMediaSeeking_GetStopPosition(seeking, &time);
-    todo_wine ok(hr == 0xdeadbeef, "Got hr %#x.\n", hr);
+    ok(hr == 0xdeadbeef, "Got hr %#x.\n", hr);

filter1.seek_hr = filter2.seek_hr = E_NOTIMPL;
     hr = IMediaSeeking_GetStopPosition(seeking, &time);
-    todo_wine ok(hr == E_NOTIMPL, "Got hr %#x.\n", hr);
+    ok(hr == E_NOTIMPL, "Got hr %#x.\n", hr);
     filter1.seek_hr = filter2.seek_hr = S_OK;

hr = IMediaSeeking_GetCurrentPosition(seeking, &time);
@@ -3823,7 +3823,7 @@ static void test_graph_seeking(void)
     hr = IMediaSeeking_GetPositions(seeking, &current, &stop);
     ok(hr == S_OK, "Got hr %#x.\n", hr);
     ok(!current, "Got time %s.\n", wine_dbgstr_longlong(current));
-    todo_wine ok(stop == 0x65432, "Got time %s.\n", wine_dbgstr_longlong(stop));
+    ok(stop == 0x65432, "Got time %s.\n", wine_dbgstr_longlong(stop));

current = 0x123;
     stop = 0x321;