in-chrome viewer for metro

win8/metro_driver/direct3d_helper.h

+// Copyright 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WIN8_METRO_DRIVER_DIRECT3D_HELPER_
+#define WIN8_METRO_DRIVER_DIRECT3D_HELPER_
+
+#include "base/basictypes.h"
+
+#include <windows.ui.core.h>
+#include <windows.foundation.h>
+#include <d3d11_1.h>
+
+namespace metro_driver {
+
+// We need to initalize a Direct3D device and swapchain so that the browser
+// can Present to our HWND. This class takes care of creating and keeping the
+// swapchain up to date.
+class Direct3DHelper {
+ public:
+  Direct3DHelper();
+  ~Direct3DHelper();
+
+  void Initialize(winui::Core::ICoreWindow* window);
+
+ private:
+  void CreateDeviceResources();
+  void CreateWindowSizeDependentResources();
+
+  winui::Core::ICoreWindow* window_;
+
+  mswr::ComPtr<ID3D11Device1> d3d_device_;
+  mswr::ComPtr<ID3D11DeviceContext1> d3d_context_;
+  mswr::ComPtr<IDXGISwapChain1> swap_chain_;
+  D3D_FEATURE_LEVEL feature_level_;
+
+  ABI::Windows::Foundation::Rect window_bounds_;
+
+  DISALLOW_COPY_AND_ASSIGN(Direct3DHelper);
+};
+
+}  // namespace metro_driver
+
+#endif  // WIN8_METRO_DRIVER_DIRECT3D_HELPER_