1+ #include " dxManager.h"
2+
3+ /* ******************************************************************
4+ * Constructor
5+ *******************************************************************/
6+ dxManager::dxManager () : pD3DDevice(NULL ),
7+ pSwapChain(NULL ),
8+ pRenderTargetView(NULL )
9+ {
10+
11+ }
12+ /* ******************************************************************
13+ * Destructor
14+ *******************************************************************/
15+ dxManager::~dxManager ()
16+ {
17+ if ( pRenderTargetView ) pRenderTargetView->Release ();
18+ if ( pSwapChain ) pSwapChain->Release ();
19+ if ( pD3DDevice ) pD3DDevice->Release ();
20+ }
21+ /* ******************************************************************
22+ * Initializes Direct3D Device
23+ *******************************************************************/
24+ bool dxManager::initialize ( HWND* hW )
25+ {
26+ // window handle
27+ hWnd = hW;
28+
29+ // get window dimensions
30+ RECT rc;
31+ GetClientRect ( *hWnd, &rc );
32+ UINT width = rc.right - rc.left ;
33+ UINT height = rc.bottom - rc.top ;
34+
35+ // Set up DX swap chain
36+ // --------------------------------------------------------------
37+ DXGI_SWAP_CHAIN_DESC swapChainDesc;
38+ ZeroMemory (&swapChainDesc, sizeof (swapChainDesc));
39+
40+ // set buffer dimensions and format
41+ swapChainDesc.BufferCount = 2 ;
42+ swapChainDesc.BufferDesc .Width = width;
43+ swapChainDesc.BufferDesc .Height = height;
44+ swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
45+ swapChainDesc.BufferDesc .Format = DXGI_FORMAT_R8G8B8A8_UNORM;;
46+
47+ // set refresh rate
48+ swapChainDesc.BufferDesc .RefreshRate .Numerator = 60 ;
49+ swapChainDesc.BufferDesc .RefreshRate .Denominator = 1 ;
50+
51+ // sampling settings
52+ swapChainDesc.SampleDesc .Quality = 0 ;
53+ swapChainDesc.SampleDesc .Count = 1 ;
54+
55+ // output window handle
56+ swapChainDesc.OutputWindow = *hWnd;
57+ swapChainDesc.Windowed = true ;
58+
59+ // Create the D3D device
60+ // --------------------------------------------------------------
61+ if ( FAILED ( D3D10CreateDeviceAndSwapChain ( NULL ,
62+ D3D10_DRIVER_TYPE_HARDWARE,
63+ NULL ,
64+ 0 ,
65+ D3D10_SDK_VERSION,
66+ &swapChainDesc,
67+ &pSwapChain,
68+ &pD3DDevice ) ) ) return fatalError (" D3D device creation failed"
69+
70+ // Create render target view
71+ // --------------------------------------------------------------
72+
73+ // try to get the back buffer
74+ ID3D10Texture2D* pBackBuffer;
75+ if ( FAILED ( pSwapChain->GetBuffer (0 , __uuidof (ID3D10Texture2D), (LPVOID*) &pBackBuffer) ) ) return fatalError (" Could not get back buffer"
76+
77+ // try to create render target view
78+ if ( FAILED ( pD3DDevice->CreateRenderTargetView (pBackBuffer, NULL , &pRenderTargetView) ) ) return fatalError (" Could not create render target view"
79+
80+ // release the back buffer
81+ pBackBuffer->Release ();
82+
83+ // set the render target
84+ pD3DDevice->OMSetRenderTargets (1 , &pRenderTargetView, NULL );
85+
86+ // Create viewport
87+ // --------------------------------------------------------------
88+
89+ // create viewport structure
90+ viewPort.Width = width;
91+ viewPort.Height = height;
92+ viewPort.MinDepth = 0 .0f ;
93+ viewPort.MaxDepth = 1 .0f ;
94+ viewPort.TopLeftX = 0 ;
95+ viewPort.TopLeftY = 0 ;
96+
97+ // set the viewport
98+ pD3DDevice->RSSetViewports (1 , &viewPort);
99+
100+ // Set up the view matrix
101+ // --------------------------------------------------------------
102+ D3DXVECTOR3 camera[3 ] = { D3DXVECTOR3 (0 .0f , 0 .0f , -5 .0f ),
103+ D3DXVECTOR3 (0 .0f , 0 .0f , 1 .0f ),
104+ D3DXVECTOR3 (0 .0f , 1 .0f , 0 .0f ) };
105+ D3DXMatrixLookAtLH (&viewMatrix, &camera[0 ], &camera[1 ], &camera[2 ]);
106+
107+ // Set up projection matrix
108+ // --------------------------------------------------------------
109+ D3DXMatrixPerspectiveFovLH (&projectionMatrix, (float )D3DX_PI * 0 .5f , (float )width/(float )height, 0 .1f , 100 .0f );
110+
111+ // everything completed successfully
112+ return true ;
113+ }
114+
115+ /* ******************************************************************
116+ * Scene Renderer
117+ *******************************************************************/
118+ void dxManager::renderScene ()
119+ {
120+ // clear scene
121+ pD3DDevice->ClearRenderTargetView ( pRenderTargetView, D3DXCOLOR (0 ,0 ,0 ,0 ) );
122+
123+ // SCENE RENDERING GOES HERE!!!
124+
125+ // flip buffers
126+ pSwapChain->Present (0 ,0 );
127+ }
128+
129+ /* ******************************************************************
130+ * Fatal Error Handler
131+ *******************************************************************/
132+ bool dxManager::fatalError (LPCSTR msg)
133+ {
134+ MessageBox (*hWnd, msg, " Fatal Error!"
135+ return false ;
136+ }
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