windowscodecs: Implement DdsFrameDecode_GetSize().

dlls/windowscodecs/ddsformat.c

@@ -299,9 +299,14 @@ static ULONG WINAPI DdsFrameDecode_Release(IWICBitmapFrameDecode *iface)
 static HRESULT WINAPI DdsFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
                                              UINT *puiWidth, UINT *puiHeight)
 {
-    FIXME("(%p,%p,%p): stub.\n", iface, puiWidth, puiHeight);
+    DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 
-    return E_NOTIMPL;
+    *puiWidth = This->width;
+    *puiHeight = This->height;
+
+    TRACE("(%p) -> (%d,%d)\n", iface, *puiWidth, *puiHeight);
+
+    return S_OK;
 }
 
 static HRESULT WINAPI DdsFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,

dlls/windowscodecs/tests/ddsformat.c

@@ -383,7 +383,7 @@ static void test_dds_decoder_frame_size(IWICBitmapDecoder *decoder, IWICBitmapFr
     if (hr != S_OK) goto end;
 
     hr = IWICBitmapFrameDecode_GetSize(frame_decode, &width, &height);
-    todo_wine ok (hr == S_OK, "%d: GetSize failed for frame %d, hr=%x\n", i, frame_index, hr);
+    ok (hr == S_OK, "%d: GetSize failed for frame %d, hr=%x\n", i, frame_index, hr);
     if (hr != S_OK) goto end;
 
     depth = params.Depth;