add d3d11 project

GDP/D3D11/Direct3D.h

@@ -0,0 +1,23 @@
+#pragma once
+#include <d3d11.h>
+
+#pragma comment(lib, "d3d11.lib")
+
+class Direct3D
+{
+public:
+	INT init(HWND hWnd, UINT width, UINT height, BOOL isFullscreen);
+	void beginScene(FLOAT r, FLOAT g, FLOAT b);
+	void endScene();
+	void deInit();
+
+	ID3D11Device* getDevice() const { return _pD3DDevice; }
+	ID3D11DeviceContext* getDeviceContext() const { return _pD3DDeviceContext; }
+
+private:
+	ID3D11Device* _pD3DDevice = nullptr; // needed for creating all objects, e.g. buffer, textures, etc., used in init phase
+	ID3D11DeviceContext* _pD3DDeviceContext = nullptr; // access to render pipeline, e.g. set matrices or draw command, used in run phase
+	IDXGISwapChain* _pDXGISwapChain = nullptr; // holds references to front & back buffer & swaps them
+	ID3D11RenderTargetView* _pD3DRenderTargetView = nullptr; // target device context is rendering to
+};
+