include: Add the IDXGISwapChain3 interface.

For cross-compilation of demos. Ideally we'd just depend on the MinGW-w64
headers for these, but we can't depend on those being new enough to include
these interfaces.

include/dxgi1_4.idl

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2016 Józef Kucia for CodeWeavers
+ * Copyright 2016 Henri Verbeet for CodeWeavers
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+import "dxgi1_3.idl";
+
+[
+    local,
+    object,
+    uuid(94d99bdb-f1f8-4ab0-b236-7da0170edab1),
+    pointer_default(unique)
+]
+interface IDXGISwapChain3 : IDXGISwapChain2
+{
+    UINT GetCurrentBackBufferIndex();
+    HRESULT CheckColorSpaceSupport(DXGI_COLOR_SPACE_TYPE type, UINT *support);
+    HRESULT SetColorSpace1(DXGI_COLOR_SPACE_TYPE type);
+    HRESULT ResizeBuffers1(UINT buffer_count, UINT width, UINT height, DXGI_FORMAT format,
+            UINT flags, const UINT *node_mask, IUnknown *const *present_queue);
+};