简单封装 Delphi 的 DirectX类

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1. var
2. CreatorRenderer : TCreatorRenderer;
3. Form1: TForm1;

窗体代码:

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1. {$R *.dfm}
2. procedure TForm1.FormCreate(Sender: TObject);
3. begin
4. // 创建
5. CreatorRenderer := TCreatorRenderer.Create();
6. CreatorRenderer.CreateDevice(self.Handle,self.Width,Self.Height ,true);
7. // 开启定时器
8. Timer1.Enabled := True;
9. end;
10. procedure TForm1.FormDestroy(Sender: TObject);
11. begin
12. CreatorRenderer.Free;
13. end;
14. procedure TForm1.Timer1Timer(Sender: TObject);
15. begin
16. CreatorRenderer.BeginRender();
17. CreatorRenderer.EndRender();
18. end;

// 下面是封装的渲染器类

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1. // 渲染器类
2. // warrially
3. unit xCreatorRenderer;
4. interface
5. uses Direct3D9, D3DX9, Windows;
6. type
7. TCreatorRenderer = class(TObject)
8. private
9. // D3D基本参数
10. m_d3dpp : D3DPRESENT_PARAMETERS;
11. private class var
12. m_pDevice : IDirect3DDevice9; //设备
13. m_pSprite : ID3DXSprite; //精灵
14. public
15. constructor Create;
16. destructor Destroy; override;
17. public
18. // 创建设备 (容器句柄, 宽, 高, 是否窗口化)
19. function CreateDevice(hWnd:HWND ; nWidth : Integer ; nHeight : Integer ; bWindowed : Boolean):Boolean;
20. // 开始渲染
21. procedure BeginRender();
22. // 结束渲染
23. procedure EndRender();
24. // 开始精灵渲染
25. procedure BeginRenderSprite();
26. // 结束精灵渲染
27. procedure EndRenderSprite();
28. // 获取设备指针
29. class function GetDevice():IDirect3DDevice9;
30. // 获取精灵指针
31. class function GetSprite():ID3DXSprite;
32. end;
33. implementation
34. { TCreatorRenderer }
35. // 开始渲染
36. procedure TCreatorRenderer.BeginRender;
37. begin
38. m_pDevice.Clear(0, nil, D3DCLEAR_TARGET or D3DCLEAR_ZBUFFER, 0, 1.0, 0);
39. m_pDevice.BeginScene();
40. end;
41. procedure TCreatorRenderer.BeginRenderSprite;
42. begin
43. m_pSprite._Begin(D3DXSPRITE_ALPHABLEND);
44. end;
45. constructor TCreatorRenderer.Create;
46. begin
47. end;
48. function TCreatorRenderer.CreateDevice(hWnd: HWND; nWidth, nHeight: Integer;
49. bWindowed: Boolean): Boolean;
50. var
51. pD3d9 : IDirect3D9;
52. myhResult : HResult ;
53. begin
54. pD3d9 := Direct3DCreate9(D3D_SDK_VERSION);
55. if (pD3d9 = nil) then
56. begin
57. OutputDebugString('Direct3D create failed.');
58. Result := False;
59. Exit;
60. end;
61. m_d3dpp.BackBufferWidth := nWidth;
62. m_d3dpp.BackBufferHeight := nHeight;
63. m_d3dpp.BackBufferFormat := D3DFMT_A8R8G8B8;
64. m_d3dpp.BackBufferCount := 1;
65. m_d3dpp.MultiSampleType := D3DMULTISAMPLE_NONMASKABLE;
66. m_d3dpp.MultiSampleQuality := 0;
67. m_d3dpp.SwapEffect := D3DSWAPEFFECT_DISCARD;
68. m_d3dpp.hDeviceWindow := hWnd;
69. m_d3dpp.Windowed := bWindowed;
70. m_d3dpp.EnableAutoDepthStencil := true;
71. m_d3dpp.AutoDepthStencilFormat := D3DFMT_D24S8;
72. m_d3dpp.Flags := 0;
73. m_d3dpp.FullScreen_RefreshRateInHz := D3DPRESENT_RATE_DEFAULT;
74. m_d3dpp.PresentationInterval := D3DPRESENT_INTERVAL_IMMEDIATE;
75. myhResult := pD3d9.CreateDevice( D3DADAPTER_DEFAULT,
76. D3DDEVTYPE_HAL,
77. hWnd,
78. D3DCREATE_HARDWARE_VERTEXPROCESSING,
79. @m_d3dpp,
80. m_pDevice);
81. if (FAILED(myhResult)) then
82. begin
83. OutputDebugString('D3D device create failed.');
84. Result := false;
85. Exit;
86. end;
87. myhResult := D3DXCreateSprite(m_pDevice, m_pSprite);
88. if (FAILED(myhResult)) then
89. begin
90. OutputDebugString('D3D sprite create failed.');
91. Result := false;
92. Exit;
93. end;
94. OutputDebugString('Renderer create succeed.');
95. Result := True;
96. end;
97. destructor TCreatorRenderer.Destroy;
98. begin
99. inherited;
100. end;
101. procedure TCreatorRenderer.EndRender;
102. begin
103. m_pDevice.EndScene();
104. m_pDevice.Present(nil, nil, 0, nil);
105. end;
106. procedure TCreatorRenderer.EndRenderSprite;
107. begin
108. m_pSprite._End();
109. end;
110. class function TCreatorRenderer.GetDevice: IDirect3DDevice9;
111. begin
112. Result := m_pDevice;
113. end;
114. class function TCreatorRenderer.GetSprite: ID3DXSprite;
115. begin
116. Result := m_pSprite;
117. end;
118. end.

http://blog.csdn.net/warrially/article/details/7938672