1 | unit UDrawMethod;
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2 |
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3 | {$mode delphi}{$H+}
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4 |
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5 | interface
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6 |
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7 | uses
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8 | Classes, SysUtils, ExtCtrls, UPlatform, UFastBitmap, Graphics, Controls,
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9 | LCLType, IntfGraphics, fpImage, GraphType, DateUtils, Forms,
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10 | {$IFDEF OPENGL}GL, GLExt, OpenGLContext,{$ENDIF}
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11 | LclIntf;
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12 |
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13 | type
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14 | TPaintObject = (poImage, poPaintBox, poOpenGL, poCanvas);
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15 |
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16 |
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17 | { TDrawMethod }
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18 |
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19 | TDrawMethod = class
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20 | private
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21 | FControl: TControl;
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22 | FFPS: Real;
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23 | FParent: TWinControl;
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24 | public
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25 | Caption: string;
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26 | Description: TStringList;
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27 | Terminated: Boolean;
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28 | FrameDuration: TDateTime;
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29 | StepDuration: TDateTime;
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30 | PaintObject: TPaintObject;
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31 | FrameCounter: Integer;
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32 | FrameCounterStart: TDateTime;
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33 | FrameCounterStop: TDateTime;
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34 | function GetFPS: Real;
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35 | property FPS: Real read FFPS write FFPS;
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36 | procedure Init(Parent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat); virtual;
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37 | procedure Done; virtual;
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38 | constructor Create; virtual;
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39 | destructor Destroy; override;
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40 | procedure DrawFrame(FastBitmap: TFastBitmap); virtual;
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41 | procedure DrawFrameTiming(FastBitmap: TFastBitmap);
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42 | procedure UpdateSettings; virtual;
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43 | property Control: TControl read FControl;
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44 | end;
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45 |
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46 | TDrawMethodClass = class of TDrawMethod;
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47 |
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48 | { TDrawMethodImage }
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49 |
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50 | TDrawMethodImage = class(TDrawMethod)
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51 | Image: TImage;
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52 | procedure UpdateSettings; override;
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53 | procedure Init(Parent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat); override;
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54 | procedure Done; override;
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55 | end;
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56 |
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57 | { TDrawMethodPaintBox }
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58 |
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59 | TDrawMethodPaintBox = class(TDrawMethod)
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60 | PaintBox: TPaintBox;
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61 | procedure Paint(Sender: TObject); virtual;
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62 | procedure UpdateSettings; override;
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63 | procedure Init(Parent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat); override;
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64 | procedure Done; override;
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65 | end;
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66 |
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67 | { TDrawMethodCanvas }
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68 |
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69 | TDrawMethodCanvas = class(TDrawMethod)
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70 | Canvas: TCanvas;
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71 | procedure UpdateSettings; override;
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72 | procedure Init(Parent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat); override;
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73 | procedure Done; override;
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74 | end;
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75 |
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76 | {$IFDEF OPENGL}
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77 |
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78 | { TDrawMethodOpenGL }
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79 |
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80 | TDrawMethodOpenGL = class(TDrawMethod)
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81 | OpenGLControl: TOpenGLControl;
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82 | TextureId: GLuint;
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83 | OpenGLBitmap: Pointer;
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84 | procedure UpdateSettings; override;
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85 | procedure InitGL;
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86 | procedure OpenGLControlResize(Sender: TObject);
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87 | procedure Init(AParent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat); override;
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88 | procedure Done; override;
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89 | end;
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90 |
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91 | {$ENDIF}
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92 |
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93 |
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94 | implementation
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95 |
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96 | { TDrawMethodCanvas }
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97 |
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98 | procedure TDrawMethodCanvas.UpdateSettings;
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99 | begin
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100 | inherited UpdateSettings;
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101 | end;
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102 |
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103 | procedure TDrawMethodCanvas.Init(Parent: TWinControl; Size: TPoint;
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104 | PixelFormat: TPixelFormat);
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105 | begin
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106 | Canvas := TForm(Parent).Canvas;
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107 | end;
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108 |
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109 | procedure TDrawMethodCanvas.Done;
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110 | begin
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111 | inherited Done;
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112 | end;
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113 |
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114 |
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115 | { TDrawMethodPaintBox }
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116 |
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117 | procedure TDrawMethodPaintBox.Paint(Sender: TObject);
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118 | begin
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119 |
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120 | end;
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121 |
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122 | procedure TDrawMethodPaintBox.UpdateSettings;
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123 | begin
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124 | inherited UpdateSettings;
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125 | PaintBox.ControlStyle := FParent.ControlStyle;
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126 | end;
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127 |
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128 | procedure TDrawMethodPaintBox.Init(Parent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat);
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129 | begin
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130 | inherited;
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131 | PaintBox := TPaintBox.Create(Parent);
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132 | PaintBox.Parent := Parent;
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133 | PaintBox.SetBounds(0, 0, Size.X, Size.Y);
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134 | PaintBox.OnPaint := Paint;
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135 | PaintBox.Show;
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136 | UpdateSettings;
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137 | end;
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138 |
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139 | procedure TDrawMethodPaintBox.Done;
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140 | begin
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141 | FreeAndNil(PaintBox);
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142 | inherited Done;
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143 | end;
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144 |
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145 | { TDrawMethodImage }
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146 |
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147 | procedure TDrawMethodImage.UpdateSettings;
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148 | begin
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149 | inherited;
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150 | Image.ControlStyle := FParent.ControlStyle;
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151 | end;
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152 |
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153 | procedure TDrawMethodImage.Init(Parent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat);
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154 | begin
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155 | inherited;
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156 | Image := TImage.Create(Parent);
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157 | Image.Parent := Parent;
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158 | Image.SetBounds(0, 0, Size.X, Size.Y);
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159 | Image.Picture.Bitmap.PixelFormat := PixelFormat;
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160 | Image.Picture.Bitmap.SetSize(Size.X, Size.Y);
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161 | Image.Show;
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162 | UpdateSettings;
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163 | end;
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164 |
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165 | procedure TDrawMethodImage.Done;
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166 | begin
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167 | FreeAndNil(Image);
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168 | inherited Done;
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169 | end;
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170 |
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171 |
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172 | {$IFDEF OPENGL}
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173 |
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174 | { TDrawMethodOpenGL }
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175 |
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176 | procedure TDrawMethodOpenGL.Init(AParent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat);
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177 | begin
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178 | inherited;
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179 | OpenGLControl := TOpenGLControl.Create(AParent);
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180 | with OpenGLControl do begin
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181 | Name := 'OpenGLControl';
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182 | Parent := AParent;
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183 | SetBounds(0, 0, Size.X, Size.Y);
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184 | InitGL;
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185 | //OnPaint := OpenGLControl1Paint;
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186 | OnResize := OpenGLControlResize;
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187 | end;
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188 | GetMem(OpenGLBitmap, OpenGLControl.Width * OpenGLControl.Height * SizeOf(Integer));
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189 | UpdateSettings;
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190 | end;
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191 |
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192 | procedure TDrawMethodOpenGL.Done;
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193 | begin
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194 | FreeMem(OpenGLBitmap, OpenGLControl.Width * OpenGLControl.Height);
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195 | FreeAndNil(OpenGLControl);
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196 | inherited;
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197 | end;
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198 |
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199 | procedure TDrawMethodOpenGL.OpenGLControlResize(Sender: TObject);
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200 | begin
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201 | glViewport(0, 0, OpenGLControl.Width, OpenGLControl.Height);
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202 | end;
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203 |
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204 | procedure TDrawMethodOpenGL.UpdateSettings;
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205 | begin
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206 | inherited UpdateSettings;
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207 | OpenGLControl.ControlStyle := FParent.ControlStyle;
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208 | end;
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209 |
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210 | procedure TDrawMethodOpenGL.InitGL;
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211 | begin
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212 | glMatrixMode(GL_PROJECTION);
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213 | glLoadIdentity;
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214 | glOrtho(0, OpenGLControl.Width, OpenGLControl.Height, 0, 0, 1);
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215 | // glOrtho(0, 1, 1, 0, 0, 1);
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216 | glMatrixMode(GL_MODELVIEW);
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217 | glLoadIdentity();
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218 | glDisable(GL_DEPTH_TEST);
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219 | glViewport(0, 0, OpenGLControl.Width, OpenGLControl.Height);
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220 | //gluPerspective( 45.0, (GLfloat)(OpenGLControl1.Width)/(GLfloat)(OpenGLControl1.Height), 0.1f, 500.0 );
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221 |
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222 | //glFrustum (-1.0, 1.0, -1.0, 1.0, 1.5, 20.0);
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223 | //glTranslatef (0.0, 0.0,-3.0);
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224 | // glClearColor(0.0, 0.0, 0.0, 1.0);
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225 |
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226 | glGenTextures(1, @TextureId);
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227 | glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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228 | end;
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229 |
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230 | {$ENDIF}
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231 |
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232 |
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233 | { TDrawMethod }
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234 |
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235 | function TDrawMethod.GetFPS: Real;
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236 | var
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237 | StopTime: TDateTime;
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238 | begin
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239 | if FrameCounterStop <> 0 then StopTime := FrameCounterStop
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240 | else StopTime := NowPrecise;
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241 | if FrameCounter > 0 then begin
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242 | Result := FrameCounter / ((StopTime - FrameCounterStart) / OneSecond);
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243 | //FrameCounter := 0;
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244 | //FrameCounterStart := NowPrecise;
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245 | end else Result := FFPS;
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246 | end;
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247 |
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248 | procedure TDrawMethod.Init(Parent: TWinControl; Size: TPoint; PixelFormat: TPixelFormat);
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249 | begin
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250 | FParent := Parent;
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251 | end;
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252 |
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253 | procedure TDrawMethod.Done;
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254 | begin
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255 |
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256 | end;
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257 |
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258 | constructor TDrawMethod.Create;
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259 | begin
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260 | Description := TStringList.Create;
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261 | end;
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262 |
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263 | destructor TDrawMethod.Destroy;
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264 | begin
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265 | FreeAndNil(Description);
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266 | inherited;
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267 | end;
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268 |
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269 | procedure TDrawMethod.DrawFrame(FastBitmap: TFastBitmap);
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270 | begin
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271 |
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272 | end;
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273 |
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274 | procedure TDrawMethod.DrawFrameTiming(FastBitmap: TFastBitmap);
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275 | var
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276 | StartTime: TDateTime;
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277 | begin
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278 | StartTime := NowPrecise;
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279 | DrawFrame(FastBitmap);
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280 | FrameDuration := NowPrecise - StartTime;
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281 | end;
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282 |
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283 | procedure TDrawMethod.UpdateSettings;
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284 | begin
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285 | end;
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286 |
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287 | end.
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288 |
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