Nikolay Sivov : mfplat: Implement IsEndOfStream() for file stream.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 52f374ad50b1ab9431c0ef7f913afc283a389827
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=52f374ad50b1ab9431c0ef7f913afc283a389827

Author: Nikolay Sivov <nsivov at codeweavers.com>
Date:   Mon May  6 13:52:18 2019 +0300

mfplat: Implement IsEndOfStream() for file stream.

Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/mfplat/main.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/dlls/mfplat/main.c b/dlls/mfplat/main.c
index 0e21497..61521ce 100644
--- a/dlls/mfplat/main.c
+++ b/dlls/mfplat/main.c
@@ -2648,16 +2648,25 @@ static HRESULT WINAPI mfbytestream_SetCurrentPosition(IMFByteStream *iface, QWOR
     return E_NOTIMPL;
 }
 
-static HRESULT WINAPI mfbytestream_IsEndOfStream(IMFByteStream *iface, BOOL *endstream)
+static HRESULT WINAPI bytestream_file_IsEndOfStream(IMFByteStream *iface, BOOL *ret)
 {
-    mfbytestream *This = impl_from_IMFByteStream(iface);
+    struct bytestream *stream = impl_from_IMFByteStream(iface);
+    LARGE_INTEGER position, length;
+    HRESULT hr = S_OK;
 
-    FIXME("%p, %p\n", This, endstream);
+    TRACE("%p, %p.\n", iface, ret);
 
-    if(endstream)
-        *endstream = TRUE;
+    EnterCriticalSection(&stream->cs);
 
-    return S_OK;
+    position.QuadPart = 0;
+    if (SetFilePointerEx(stream->hfile, position, &length, FILE_END))
+        *ret = stream->position >= length.QuadPart;
+    else
+        hr = HRESULT_FROM_WIN32(GetLastError());
+
+    LeaveCriticalSection(&stream->cs);
+
+    return hr;
 }
 
 static HRESULT WINAPI bytestream_file_Read(IMFByteStream *iface, BYTE *buffer, ULONG size, ULONG *read_len)
@@ -2771,7 +2780,7 @@ static const IMFByteStreamVtbl bytestream_file_vtbl =
     mfbytestream_SetLength,
     mfbytestream_GetCurrentPosition,
     mfbytestream_SetCurrentPosition,
-    mfbytestream_IsEndOfStream,
+    bytestream_file_IsEndOfStream,
     bytestream_file_Read,
     bytestream_BeginRead,
     bytestream_EndRead,